From: Xavier Leroy <xavier.leroy@inria.fr>
To: Daniel Andor <Daniel.Andor@physics.org>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] ocaml on supercomputer?
Date: Tue, 15 Jul 2003 17:24:36 +0200 [thread overview]
Message-ID: <20030715172436.A7268@pauillac.inria.fr> (raw)
In-Reply-To: <200307151531.33043.da209@cam.ac.uk>; from da209@cam.ac.uk on Tue, Jul 15, 2003 at 03:31:31PM +0100
> 1) (Cross) compiling. Which of mips r12000, power4 and usparcIII are best
> supported so that my existing code runs well?
SPARC/Solaris and MIPS/IRIX are well supported, SPARC perhaps a bit better.
The POWER/AIX port of OCaml isn't really supported because I don't
have such a machine at hand. (And also because AIX is a pain.)
> How do I cross-compile (if I need to), given that there are math
> libraries (BLAS, LAPACK) that I need to link to on the target
> platform? To run ocamlopt on the target machine, at a minimum I
> need to cross-compile ocamlrun, right?
You do not need to cross-compile: just build the OCaml distribution on
the target machine, and compile your program on the target machine as well.
> 2) Threads vs. MPI. Writing threaded code for an SMP node would be
> the simplest way for me to harness many CPUs at the same time. But
> what's thread support like on different platforms (listed below)
> with OCaml?
OCaml threads do not exploit shared-memory multiprocessing --
basically, all threads interleave their execution, hence multiple
processors are not exploited. Your best bet is MPI or PVM. Both have
bindings for OCaml.
Hope this helps,
- Xavier Leroy
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next prev parent reply other threads:[~2003-07-15 15:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-15 14:31 Daniel Andor
2003-07-15 15:24 ` Xavier Leroy [this message]
2003-07-15 16:02 ` Hal Daume III
2003-07-16 0:23 ` Yaron M. Minsky
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